By Dr Konstantinos Farsalinos A 2017 study published in the journal Environmental Science and Technology reported that aldehyde emissions from e-cigarettes are derived from thermal degradation of flavoring compounds rather than the main liquid ingredients (propylene glycol and glycerol). The study found non-detectable levels of aldehydes in unflavored liquids, but
Read MoreE-cigarette flavors and aldehyde emissions: another failure to verify findings from a previous study
